空室（くうしつ、kuushitsu）
- vacant room

The Japanese word 空室 (くうしつ) means "vacant room," "vacancy," or "unoccupied room." It refers to a room, apartment, or other type of lodging that is currently not being lived in or used. It implies that the space is available for rent, purchase, or temporary use. The word is frequently encountered in real estate, hotels, and general accommodation contexts.

⚫︎このホテルには空室はありますか？ Translation: Are there any vacant rooms in this hotel? ⚫︎空室が多いアパートは、家賃が下がる傾向があります。 Translation: Apartments with many vacancies tend to have lower rent. ⚫︎物件の空室状況を確認します。 Translation: I will check the vacancy status of the property.

空室 is used primarily when discussing the availability of accommodations. It's common in conversations with real estate agents, hotel staff, or when browsing property listings. You can use it to inquire about a room's availability or to describe a property's current state. The word is straightforward and widely understood.

空室 is most commonly written with the kanji 空 (くう - meaning "empty" or "vacant") and 室 (しつ - meaning "room"). The reading is くうしつ (kuushitsu) in hiragana. There is no other typical way to write the word. The okurigana (hiragana attached to the kanji) is not applicable here. There are no significant variations. The word is always 空室.

⚫︎ 空き部屋 (あきべや) - vacant room (more casual). ⚫︎ 空室状況 (くうしつじょうきょう) - vacancy status. ⚫︎ 満室 (まんしつ) - full occupancy/no vacancy (antonym).

⚫︎ 満室 (まんしつ) - full/occupied. ⚫︎ 入居中 (にゅうきょちゅう) - occupied (currently being lived in).

来週、東京に行く予定ですが、ホテルに空室はありますか？ ・Translation: I plan to go to Tokyo next week, but are there any 空室s at the hotel? ・Explanation: This sentence uses 空室 to inquire about room availability.

このマンションは空室が少ないので、人気があります。 ・Translation: This apartment building is popular because it has few 空室s. ・Explanation: This sentence describes the popularity of a building based on its vacancy rate.

The word 空室 is a compound word. 空 (kuu) derives from the concept of emptiness or vacancy, and 室 (shitsu) simply refers to a room. Therefore, the combined meaning directly reflects the state of an empty or unoccupied room.